我如何跳过从数拾取一些号码是多少？ [英] How do i skip some number from number picker?

问题描述

号码选择器

np = (NumberPicker) findViewById(R.id.numberPicker1);
    np.setMaxValue(200);
    np.setMinValue(1);
    Button b = (Button) findViewById(R.id.button1);

当我滚动的数字应该去1 2 3 ...等。

when I scroll numbers should go 1 2 3 ... etc ..

我要滚动时就是它应该去5 10 15等

what I want is when scrolling its should go 5 10 15 etc

该怎么办呢？

推荐答案

这code段应解决您的问题;

This code snippet should fix your problem;

NumberPicker np = (NumberPicker) findViewById(R.id.numberPicker1);
String[] numbers = new String[200/5];
for (int i=0; i<numbers.length; i++)
    numbers[i] = Integer.toString(i*5+5);
np.setDisplayedValues(numbers);
np.setMaxValue(numbers.length-1);
np.setMinValue(0);
np.setWrapSelectorWheel(false);

np.setOnValueChangedListener(new OnValueChangeListener() {
    @Override
    public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
        int newValue = newVal * 5 + 5;
    }
});

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